JPH0524810B2 - - Google Patents

Info

Publication number
JPH0524810B2
JPH0524810B2 JP63039613A JP3961388A JPH0524810B2 JP H0524810 B2 JPH0524810 B2 JP H0524810B2 JP 63039613 A JP63039613 A JP 63039613A JP 3961388 A JP3961388 A JP 3961388A JP H0524810 B2 JPH0524810 B2 JP H0524810B2
Authority
JP
Japan
Prior art keywords
lip
bellows
drive
main body
divided
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP63039613A
Other languages
Japanese (ja)
Other versions
JPH01215530A (en
Inventor
Yoshuki Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP63039613A priority Critical patent/JPH01215530A/en
Publication of JPH01215530A publication Critical patent/JPH01215530A/en
Publication of JPH0524810B2 publication Critical patent/JPH0524810B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • B29C48/313—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections by positioning the die lips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92019—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92361—Extrusion unit
    • B29C2948/92409—Die; Nozzle zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明はＴダイリツプ駆動部の構造に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of a T-die lip drive section.

（従来技術） 紙、アルミ箔、あるいはプラスチツク等の基材
に樹脂をコーテングするラミネートプロセスで
は、加工品質、省樹脂化等の点からコーテイング
膜厚制御システムに対するニーズが高まつてい
る。本システムを実現するためには、溶融樹脂の
流出量を制御することが可能なＴダイが技術的ポ
イントとなる。(Prior Art) In the lamination process in which resin is coated on a base material such as paper, aluminum foil, or plastic, there is an increasing need for a coating film thickness control system from the viewpoint of processing quality, resin saving, etc. In order to realize this system, the technical key is a T-die that can control the amount of molten resin flowing out.

従来、Ｔダイからの溶融樹脂の流出量は、リツ
プ部に設けられたギヤツプ調整用ボルトを人手に
より回転させることによつて調整されてきた。し
かし、一部ではこれを自動化し「ヒートボルト方
式」、「サーボモータ方式」などの駆動方式を採用
している。ヒートボルト方式はボルトの熱膨張を
利用する方式であるが、加熱・冷却に時間を要し
応答性が低い事が問題となつている。また、サー
ボモータ方式は、１台ないしは複数台のサーボモ
ータを用いてボルトを順次回転させる方式であ
り、これまでの人手による作業をロボツト化する
思想に立つている。しかし、全てのボルトを同時
に駆動できず、結果として調整時間が大きくなる
という問題がある。 Conventionally, the amount of molten resin flowing out from the T-die has been adjusted by manually rotating a gap adjustment bolt provided on the lip portion. However, in some cases, this has been automated and drive methods such as the ``heat bolt method'' and ``servo motor method'' have been adopted. The heat bolt method utilizes the thermal expansion of the bolt, but the problem is that it takes time for heating and cooling and has low responsiveness. Furthermore, the servo motor method is a method in which bolts are sequentially rotated using one or more servo motors, and is based on the idea of converting conventional manual work into robots. However, there is a problem that all the bolts cannot be driven at the same time, resulting in a longer adjustment time.

（発明が解決しようとする課題） 従来技術の問題点に鑑み、ギヤツプの調整を高
速、且つ精度よく行うことができるＴダイリツプ
駆動部の構造を提供せんとするものである。(Problems to be Solved by the Invention) In view of the problems of the prior art, it is an object of the present invention to provide a structure of a T-die rip drive unit that can perform gap adjustment at high speed and with high precision.

（課題を解決するための手段） 本体構造体１と、本体構造体１の側部片側に配
設した複数個のベローズ２と、該ベローズ２とリ
ツプ部１４を連結するため上部でベローズ２に締
着され、下部でリツプ部構造体１２に締着された
駆動部構造体３とからなり、前記駆動部構造体３
はリツプ部１４の巾方向に縦方向の間〓１５で複
数に分割され、この縦方向の間〓１５の位置に対
応しリツプ部構造体１２にも縦方向の溝部９ａ及
び横方向の溝部９ｂを設け、さらに駆動部構造体
３の各分割部にこれに対応するベローズ２への給
気孔１０を設け、分割された各駆動部構造体３
ａ，３ｂ，３ｃ…を個々に独立させた。(Means for Solving the Problems) A main body structure 1, a plurality of bellows 2 disposed on one side of the main body structure 1, and a bellows 2 at an upper part to connect the bellows 2 and a lip part 14. and a drive part structure 3 which is fastened to the lip part structure 12 at the lower part, and the drive part structure 3 is fixed to the lip part structure 12 at the lower part.
is divided into a plurality of parts in the width direction of the lip part 14 at a vertical gap 15, and corresponding to the position of this vertical gap 15, the lip part structure 12 also has a vertical groove part 9a and a horizontal groove part 9b. Further, air supply holes 10 to the bellows 2 corresponding to each divided portion of the drive section structure 3 are provided, and each divided drive section structure 3 is provided with a corresponding air supply hole 10 to the bellows 2.
a, 3b, 3c... were made independent.

（作用） 駆動部構造体の給気孔から圧縮空気を供給して
ベローズに送るとベローズが伸び、駆動部構造体
からノズル部構造体を介して、ノズル部にモーメ
ントを作用させて変位させるようにした。そして
駆動部構造体を分割溝を設けて分割し、個々の駆
動部を独立して駆動させることができるようにし
た。(Function) When compressed air is supplied from the air supply hole of the drive part structure and sent to the bellows, the bellows expands, and a moment is applied from the drive part structure to the nozzle part via the nozzle part structure, causing it to be displaced. did. The drive unit structure is divided by providing dividing grooves so that each drive unit can be driven independently.

（発明の実施例） 第１図は本発明を実施したＴダイリツプ部の斜
視図である。Ｔダイは大きくわけて３つの部分か
ら構成されている。即ち、本体構造体１、本体構
造体１の側部片側に配設した複数個のベローズ２
…、ベローズ２とリツプ部１４とを連結する駆動
部構造体３…で構成されている。これらの組合せ
により、任意数の駆動部を構成することができ
る。(Embodiments of the Invention) FIG. 1 is a perspective view of a T-die lip part in which the present invention is implemented. The T-die is roughly divided into three parts. That is, a main body structure 1, a plurality of bellows 2 disposed on one side of the main body structure 1,
..., a drive section structure 3 that connects the bellows 2 and the lip section 14. By combining these, any number of drive units can be configured.

第２図は第１図の矢視図、第３図は第２図の
下面図、そして第４図は第２図の−断面図で
ある。各ベローズ２は本体構造体１にボルト８に
より締着固定されている。又各ベローズ２は駆動
部構造体３にボルト７で締着固定されている。各
ボルト７による締付部にはシール４又は５（第４
図）が設けられ、ベローズ２内からの圧縮空気の
漏出を防止している。 2 is a view in the direction of the arrows in FIG. 1, FIG. 3 is a bottom view of FIG. 2, and FIG. 4 is a sectional view taken along the line shown in FIG. Each bellows 2 is fastened and fixed to the main body structure 1 with bolts 8. Further, each bellows 2 is fastened and fixed to the drive section structure 3 with bolts 7. A seal 4 or 5 (fourth
) is provided to prevent leakage of compressed air from within the bellows 2.

本体構造体１のリツプ部１４の近傍には弾性変
形部１１、及びこれと一体のリツプ部構造体１２
が一体構造体として構成されている。リツプ部構
造体１２と駆動部構造体３とはボルト６によつて
一体に締め付けられている。 In the vicinity of the lip portion 14 of the main body structure 1, there is an elastically deformable portion 11 and a lip portion structure 12 integrated therewith.
is constructed as an integral structure. The lip part structure 12 and the drive part structure 3 are fastened together with bolts 6.

複数の各駆動部構造体３にはこれに対応する２
個のベローズ用の２個所の給気孔１０が設けられ
ている。該給気孔１０はベローズ２に設けられた
給気孔１３（第４図）と同心である。駆動部構造
体３は複数の構造体３ａ，３ｂ，３ｃ…に縦方向
の間〓１５で分割されている。隣接する構造体３
ａと３ｂ又は３ｂと３ｃ等との間の縦方向の間〓
１５の位置に対応してリツプ部構造体１２には縦
方向の溝部９ａと横方向の溝部９ｂを設けてい
る。かくして各駆動部は独立した複数の構造体で
構成されている。 Each of the plurality of drive section structures 3 has two corresponding ones.
Two air supply holes 10 are provided for each bellows. The air supply hole 10 is concentric with an air supply hole 13 (FIG. 4) provided in the bellows 2. The drive unit structure 3 is divided into a plurality of structures 3a, 3b, 3c, . . . by a distance 15 in the vertical direction. Adjacent structure 3
Vertical space between a and 3b or 3b and 3c, etc.
The lip structure 12 is provided with a vertical groove 9a and a horizontal groove 9b corresponding to the position 15. Thus, each drive section is composed of a plurality of independent structures.

給気孔１０を通して各ベローズ２に圧縮空気を
供給すると、本体構造体１と駆動部構造体３との
間にはベローズ２の軸心方向の機械的剛性が他の
構造体に比べ低いため、第４図で矢印x1方向の力
が発生する。x1方向の力は弾性変形部１１に対し
てモーメントとして伝達される。すると弾性変形
部１１は、本体構造体１及び駆動部構造体３に比
べその機械剛性が低いので、この部分で弾性変形
が発生し、リツプ部１４がx2方向に移動する（第
４図）。この変位量はベローズ２より伝達される
モーメント、或はその源である圧縮ガス圧力にほ
ぼ比例している。この特性の一例を第６図に示
す。 When compressed air is supplied to each bellows 2 through the air supply hole 10, there is a gap between the main body structure 1 and the drive section structure 3 because the mechanical rigidity of the bellows 2 in the axial direction is lower than that of other structures. In figure 4, a force is generated in the direction of arrow x1 . The force in the x 1 direction is transmitted to the elastically deformable portion 11 as a moment. Then, since the elastic deformation part 11 has lower mechanical rigidity than the main body structure 1 and the drive part structure 3, elastic deformation occurs in this part, and the lip part 14 moves in the x 2 direction (Fig. 4). . This amount of displacement is approximately proportional to the moment transmitted by the bellows 2 or the compressed gas pressure that is the source thereof. An example of this characteristic is shown in FIG.

以上の如く、ベローズ２に供給する圧縮ガス圧
力を制御する事により、リツプ開度を任意に制御
する事ができる。さらにそれぞれの駆動機構へ供
給するガス圧力を同時且つ独立に制御する事によ
り、多数の点のリツプ開度を同時且つ独立に制御
する事ができる。 As described above, by controlling the compressed gas pressure supplied to the bellows 2, the lip opening degree can be arbitrarily controlled. Furthermore, by simultaneously and independently controlling the gas pressure supplied to each drive mechanism, the lip opening degrees at multiple points can be controlled simultaneously and independently.

リツプ部１４は長手方向に連続した構造となつ
ているため、上述した方向にある点が駆動される
と、左右の隣接するリツプ部１４を干渉され変位
しようとする。この干渉による変位は前記多数の
構造体間の間隙に対応して設けたリツプ部構造体
の縦方向の溝部９ａ及び横方向の溝部９ｂの存在
で上記干渉度を極力小さくしている。 Since the lip portion 14 has a continuous structure in the longitudinal direction, when a certain point is driven in the above-mentioned direction, the adjacent lip portions 14 on the left and right are interfered with and tend to be displaced. The degree of displacement due to this interference is minimized by the presence of the vertical grooves 9a and the horizontal grooves 9b of the lip structure, which are provided corresponding to the gaps between the multiple structures.

本発明はＴダイリツプ部の駆動を念頭において
いるが、この他加工機械、３次元測定機、半導体
製造装置等の各種精密機械用の精密駆動機構とし
て利用することも可能である。 Although the present invention is designed to drive a T-die lip, it can also be used as a precision drive mechanism for various precision machines such as processing machines, three-dimensional measuring machines, and semiconductor manufacturing equipment.

（効果） ベローズ２の伸縮作用による駆動部としたの
で、非常に応答性に優れている。因みに熱膨張方
式では時定数10〜20分であるのに対し、１秒以下
である。(Effects) Since the drive unit is based on the expansion and contraction action of the bellows 2, the response is extremely excellent. Incidentally, the time constant is less than 1 second, whereas the thermal expansion method has a time constant of 10 to 20 minutes.

ベローズの伸縮を駆動部構造体３からリツプ部
構造体１２を介し伝へ、リツプ部１４の弾性変形
で制御するようにしたので、ヒステリシスがほと
んどなく、高い駆動分解能を有している。 Since the expansion and contraction of the bellows is transmitted from the drive section structure 3 through the lip section structure 12 and controlled by elastic deformation of the lip section 14, there is almost no hysteresis and high drive resolution is achieved.

駆動部を複数に分割したので、隣接する他の駆
動部への干渉度の小さい駆動部の構造を提供でき
る。 Since the drive section is divided into a plurality of parts, it is possible to provide a structure of the drive section that has a small degree of interference with other adjacent drive sections.

駆動部を分割して個々独立可能にすると共に、
多点同時駆動も勿論可能であり、極めて駆動の制
御性に優れている。 In addition to dividing the drive unit to enable individual independence,
Of course, simultaneous driving of multiple points is also possible, and drive controllability is extremely excellent.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はＴダイリツプ部の部分斜視図。第２図
は第１図の矢視図。第３図は第２図の下面図。
第４図は第２図の−断面図。第５図は駆動部
の変形挙動説明図。第６図はリツプ部の圧力−変
位特性図。 図において；１…本体構造体、２…ベローズ、
３…駆動部構造体、４…シール、５…シール、６
…ボルト、７…ボルト、８…ボルト、９ａ，９ｂ
…溝部、１０…給気孔、１１…弾性変形部、１２
…リツプ部構造体、１３…給気孔、１４…リツプ
部、１５…（縦方向の）間〓。 FIG. 1 is a partial perspective view of the T-die lip. FIG. 2 is a view taken along the arrow in FIG. FIG. 3 is a bottom view of FIG. 2.
FIG. 4 is a cross-sectional view taken from FIG. FIG. 5 is an explanatory diagram of the deformation behavior of the drive section. FIG. 6 is a pressure-displacement characteristic diagram of the lip portion. In the figure; 1...Main structure, 2...Bellows,
3... Drive unit structure, 4... Seal, 5... Seal, 6
...Bolt, 7...Bolt, 8...Bolt, 9a, 9b
...Groove portion, 10...Air supply hole, 11...Elastic deformation portion, 12
... lip part structure, 13... air supply hole, 14... lip part, 15... (vertical direction) space.

Claims (1)

【特許請求の範囲】[Claims] １ 本体構造体１と本体構造体１の側部片側に配
設した複数個のベローズ２と、該ベローズとリツ
プ部１４を連結するため上部でベローズ２に締着
され、下部でリツプ部構造体１２に締着された駆
動部構造体３とからなり、前記駆動部構造体３は
リツプ部１４の巾方向に縦方向の間〓１５で複数
に分割され、この縦方向の間〓１５の位置に対応
しリツプ部構造体１２に縦方向の溝部９ａ及び横
方向の溝部９ｂを設け、さらに駆動部構造体３の
各分割部にこれに対応するベローズ２への給気孔
１０を設け、分割された各駆動部構造体３ａ，３
ｂ，３ｃ…を個々に独立させたことを特徴とする
Ｔダイリツプ駆動部の構造。1 A main body structure 1 and a plurality of bellows 2 arranged on one side of the main body structure 1, the upper part is fastened to the bellows 2 to connect the bellows and the lip part 14, and the lower part is fastened to the lip part structure. The drive section structure 3 is divided into a plurality of parts along the width direction of the lip section 14 at a vertical interval 15, and at a position 15 between the longitudinal directions. Correspondingly, vertical grooves 9a and horizontal grooves 9b are provided in the lip part structure 12, and air supply holes 10 to the bellows 2 corresponding to each divided part of the drive part structure 3 are provided. Each drive unit structure 3a, 3
A structure of a T-die lip drive section characterized in that b, 3c... are made independent.
JP63039613A 1988-02-24 1988-02-24 Structure of driving part of t-die lip Granted JPH01215530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63039613A JPH01215530A (en) 1988-02-24 1988-02-24 Structure of driving part of t-die lip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63039613A JPH01215530A (en) 1988-02-24 1988-02-24 Structure of driving part of t-die lip

Publications (2)

Publication Number Publication Date
JPH01215530A JPH01215530A (en) 1989-08-29
JPH0524810B2 true JPH0524810B2 (en) 1993-04-09

Family

ID=12557959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63039613A Granted JPH01215530A (en) 1988-02-24 1988-02-24 Structure of driving part of t-die lip

Country Status (1)

Country Link
JP (1) JPH01215530A (en)

Also Published As

Publication number Publication date
JPH01215530A (en) 1989-08-29

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